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ADD8505 데이터시트 PDF




Analog Devices에서 제조한 전자 부품 ADD8505은 전자 산업 및 응용 분야에서
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부품번호 ADD8505 기능
기능 (ADD8504 - ADD8506) Muxed Input Line Inversion LCD Gamma Buffers
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ADD8505 데이터시트, 핀배열, 회로
www.DataSheet4U.com
4-, 5-, 6-Channel, Muxed Input
Line Inversion LCD Gamma Buffers
ADD8504/ADD8505/ADD8506
FEATURES
Single-supply operation: 3.3 V to 6.5 V
Rail-to-rail input, rail-to-rail output
High output current: 380 mA
Low supply current: 3.9 mA
Stable with 1 nF loads
Wide temperature range: −40°C to +105°C
16-, 20-, and 24-lead, Pb-free, TSSOP packages
APPLICATIONS
LCD line inversion gamma references
Car navigation panels
Personal media player panels
GENERAL DESCRIPTION
The ADD8504, ADD8505, and ADD8506 are 4-, 5-, and
6-channel LCD gamma reference buffers designed to drive
column driver gamma inputs in line inversion panels. Each
buffer channel has an A/B input to select between two gamma
voltage curves. These buffer channels drive the resistor ladders
of LCD column drivers for gamma correction. The ADD8504/
ADD8505/ADD8506 outputs have high slew rates and output
drives that increase the stability of the reference ladder resulting
in optimal gray scale and visual performance.
The ADD8504/ADD8505/ADD8506 are specified over the
−40°C to +105°C temperature range. They are available, respec-
tively, in 16-, 20-, and 24-lead thin shrink small outline (TSSOP),
surface-mount, Pb-free packages.
PIN CONFIGURATION DIAGRAMS
INA1 1
INB1 2
INA2 3
INB2 4
INA3 5
INB3 6
INA4 7
INB4 8
16 OUT1
15 OUT2
14 VCC1
13 A/B
12 GND
11 GND
10 OUT3
9 OUT4
Figure 1. ADD8504: 4-Channel Buffer
INA1 1
INB1 2
INA2 3
INB2 4
INA3 5
INB3 6
INA4 7
INB4 8
INA5 9
INB5 10
20 VCC1
19 OUT1
18 OUT2
17 OUT3
16 VCC2
15 A/B
14 GND
13 GND
12 OUT4
11 OUT5
Figure 2. ADD8505: 5-Channel Buffer
INA1 1
INB1 2
INA2 3
INB2 4
INA3 5
INB3 6
INA4 7
INB4 8
INA5 9
INB5 10
INA6 11
INB6 12
24 VCC1
23 OUT1
22 OUT2
21 OUT3
20 VCC2
19 A/B
18 GND
17 GND
16 OUT4
15 OUT5
14 OUT6
13 VCC3
Figure 3. ADD8506: 6-Channel Buffer
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.




ADD8505 pdf, 반도체, 판매, 대치품
ADD8504/ADD8505/ADD8506
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
Rating
Supply Voltage
7V
Input Voltage
Storage Temperature Range
GND to VCC
−65°C to +150°C
Junction Temperature Range
−65°C to +150°C
Lead Temperature (Soldering, 60 sec)
300°C
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
THERMAL RESISTANCE
Table 3. Thermal Package Characteristics
Model
Package Type
θJA1 θJC2 Unit
ADD8504WRUZ 16-Lead Pb-Free TSSOP 150 28 °C/W
ADD8505WRUZ 20-Lead Pb-Free TSSOP 143 45 °C/W
ADD8506WRUZ 24-Lead Pb-Free TSSOP 128 45 °C/W
1 θJA is specified for natural convection on a two-layer board.
2 θJC is specified for natural convection on a two-layer board.
ESD PERFORMANCE
Table 4.
Model
HBM1
ADD8504WRUZ 4.0 kV
ADD8505WRUZ 3.5 kV
ADD8506WRUZ 3.5 kV
1 Human body model.
2 Machine model.
3 Field induced charge device model.
MM2
400 V
200 V
200 V
FICDM 3
1.0 kV
1.0 kV
1.0 kV
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on
the human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. B | Page 4 of 8

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ADD8505 전자부품, 판매, 대치품
ADD8504/ADD8505/ADD8506
APPLICATIONS
The ADD8504/ADD8505/ADD8506 have CMOS buffers with
A/B inputs to select between two different reference voltages set
up by an external resistor ladder. Input bias currents are orders
of magnitude less than competitive parts. This allows the use of
a very large resistor ladder to save supply current.
The buffer outputs are designed to drive resistive or capacitive
loads. Therefore, to attain the best display performance, do not
use resistors in series with these outputs. Outputs have high
slew rates and 6 μs settling times. Each output delivers a mini-
mum of 120 mA, ensuring a fast response to varying loads.
Power supply pins on the ADD8505 and ADD8506 have
multiple ground (GND) and supply (VCC) connections.
Because of the high peak currents that these buffers deliver, it
is recommended that all GND and VCC pins be connected and
suitably bypassed.
Table 6. MUX Function
A/B Select
Logic High
Logic Low
Input
INAx
INBx
5V
0.1μF
RA1
RB1
1
RA2
RB2
2
3
RA3
RB3
4
5
RA4
RB4
6
7
RA5
RB5
8
9
RA6
RB6
10
101
RA7
RB7
5V 0.1μF
12
VCOM
(INVERTING SIGNAL)
5V
0.1μF
24 TO COLUMN
DRIVERS
23
22
21
20
19
18
17
16
15
14
13
NOTES
1. RAx RESISTORS ARE USED TO SET POSITIVE INVERSION GAMMA VOLTAGES.
2. RBx RESISTORS ARE USED TO SET NEGATIVE INVERSION GAMMA VOLTAGES.
Figure 12. Typical Application
Rev. B | Page 7 of 8

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